Mask use in the context of COVID-19 - Interim Guidance | ||||||||
guide Dec 2020 ; 22 pages ![]() Ed. OMS - Beirut Téléchargeable sous format: PdF ![]() Abstract: This document, which is an update of the guidance published on 5 June 2020, includes new scientific evidence relevant to the use of masks for reducing the spread of SARS-CoV-2, the virus that causes COVID-19, and practical considerations. It contains updated evidence and guidance on the following: • mask management; • SARS-CoV-2 transmission; • masking in health facilities in areas with community, cluster and sporadic transmission; • mask use by the public in areas with community and cluster transmission; • alternatives to non-medical masks for the public; • exhalation valves on respirators and non-medical masks; • mask use during vigorous intensity physical activity; • essential parameters to be considered when manufacturing non-medical masks (Annex).
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